scsi: Centralise ssp frame information units

The xfer_rdy, command, and task frame's iu structures are not available
in <scsi/sas.h>, but only aic94xx driver folder.  Add them to
include/scsi/sas.h

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/include/scsi/sas.h b/include/scsi/sas.h
index 0d2607d12387..42a84ef42683 100644
--- a/include/scsi/sas.h
+++ b/include/scsi/sas.h
@@ -344,6 +344,43 @@ struct ssp_response_iu {
         u8     sense_data[0];
 } __attribute__ ((packed));
 
+struct ssp_command_iu {
+        u8     lun[8];
+        u8     _r_a;
+
+        union {
+                struct {
+                        u8  attr:3;
+                        u8  prio:4;
+                        u8  efb:1;
+                };
+                u8 efb_prio_attr;
+        };
+
+        u8    _r_b;
+
+        u8    _r_c:2;
+        u8    add_cdb_len:6;
+
+        u8    cdb[16];
+        u8    add_cdb[0];
+} __attribute__ ((packed));
+
+struct xfer_rdy_iu {
+        __be32 requested_offset;
+        __be32 write_data_len;
+        __be32 _r_a;
+} __attribute__ ((packed));
+
+struct ssp_tmf_iu {
+        u8     lun[8];
+        u16    _r_a;
+        u8     tmf;
+        u8     _r_b;
+        __be16 tag;
+        u8     _r_c[14];
+} __attribute__ ((packed));
+
 /* ---------- SMP ---------- */
 
 struct report_general_resp {
@@ -538,6 +575,43 @@ struct ssp_response_iu {
         u8     sense_data[0];
 } __attribute__ ((packed));
 
+struct ssp_command_iu {
+        u8     lun[8];
+        u8     _r_a;
+
+        union {
+                struct {
+                        u8  efb:1;
+                        u8  prio:4;
+                        u8  attr:3;
+                };
+                u8 efb_prio_attr;
+        };
+
+        u8    _r_b;
+
+        u8    add_cdb_len:6;
+        u8    _r_c:2;
+
+        u8    cdb[16];
+        u8    add_cdb[0];
+} __attribute__ ((packed));
+
+struct xfer_rdy_iu {
+        __be32 requested_offset;
+        __be32 write_data_len;
+        __be32 _r_a;
+} __attribute__ ((packed));
+
+struct ssp_tmf_iu {
+        u8     lun[8];
+        u16    _r_a;
+        u8     tmf;
+        u8     _r_b;
+        __be16 tag;
+        u8     _r_c[14];
+} __attribute__ ((packed));
+
 /* ---------- SMP ---------- */
 
 struct report_general_resp {